Answer:
600 numbers
Step-by-step explanation:
For six-digit numbers, we need to use all digits 8,0,1,3,7,5 each once.
However, 0 cannot be used as the first digit, because it would make a 5-digit number.
Therefore
there are 5 choices for the first digit (exclude 0)
there are 5 choices for the first digit (include 0)
there are 4 choices for the first digit
there are 3 choices for the first digit
there are 2 choices for the first digit
there are 1 choices for the first digit
for a total of 5*5*4*3*2*1 = 600 numbers
Answer: 40 cm ^2
Step-by-step explanation:
cuz math
The exponent only applies to the x not the 4
so only the x has permission to move to the denominator
this leaves you with 4/x^3
Just divide both sides by 2 because you want to do the opposite operation, to isolate x so if you do you get 80 so x = 80